And we are back, now, with the latest own paul walker's fatal crash. New surveillance video released overnight. And vince diesel going to the scene of the crash, to remember his good friend. Reporter: Overnight, paul walker's co-stars paid a sorrowful tribute to him, showing up at the crash scene. If my brother was here right now and he saw all of the love you were bringing here, if he could see for himself, that all of you have shown up to show my brother love. Reporter: Vin diesel getting emotional as he addressed the crowds outside. I want to say thank you. Thank you for coming down here and showing that angel up in heaven -- Reporter: And this morning, a new look at the final seconds of that life cut short. You see there in the right corner of this surveillance video, a glimpse of a speeding car. Then this, an explosion, followed by billowing smoke. Within seconds, people are racing in to rescue walker and the driver. See the unbelievable explosion one more time. One of walker's childhood friends reportedly tried to pull his body from the burning car. Police had to hold him back. But it was too late. Both men were pronounced dead at the scene. 40-year-old walker rose to fame street racing in "fast & furious." He's become an icon by virtue of his role. His career took on an added energy, by virtue of this franchise. Reporter: Walker and his friend were driving very fast. And putting to rest, speculation they might have been drag racing with someone else. Police say it appears there was no other car there when they went on that joyride, following a charity event. Authorities are looking for more surveillance video like this, for clues. And as that memorial at the crash site grows, walker's family continues to search for answers. We lost a spirit. You lost a person that -- he had a way about him. I'm devastated. Reporter: And walker's 15-year-old daughter, meadow, was also there for that overnight memorial. Lara, the results of the autopsy could be released as early as today. All right, cecilia. We thank you. And our thoughts are with paul's family.

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